Thrust plate structure for storing oil by utilizing capillarity principle

Abstract

The utility model provides a thrust plate structure utilizing the capillarity principle to store oil, which is arranged in a gap between a bearing seat end face and a crankshaft end face of an air cylinder body and comprises a thrust plate body, a crankshaft side groove and an air cylinder body side groove, and the crankshaft side groove and the air cylinder body side groove are symmetrically arranged on two end faces of the thrust plate body. The length directions of the crankshaft side groove and the cylinder body side groove are both arranged in the radial direction of the thrust plate body, a through hole is formed in the thrust plate body in a penetrating mode, one end of the through hole communicates with the crankshaft side groove, and the other end of the through hole communicates with the cylinder body side groove. A plurality of groups of circular hole groove oil storage structures are designed on the thrust plate by utilizing the capillary phenomenon principle, so that the normal operation of the clutch separation working condition of an engine for a longer continuous separation time is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine lubrication, and relates to a thrust plate structure which utilizes the capillary phenomenon principle to store oil. Background Art

[0002] With the development of engine technology and the urgent need for energy conservation and emission reduction, the application scenarios of hybrid engines are becoming more and more extensive.

[0003] The clutch disengagement of a conventional engine is usually used when the vehicle is starting or shifting, and the disengagement time is relatively short, about within 3 seconds. When the engine clutch is disengaged, the crankshaft is subjected to axial force and fits against the thrust plate. The kinematic pair formed by the thrust plate and the crankshaft needs lubrication to reduce friction.

[0004] However, in the hybrid engine scenario, the entire vehicle is powered by a combination of batteries and engines, the power mode switches frequently, the engine power needs to be frequently engaged and disengaged, and there is a condition where the engine clutch is disengaged for a long time. Therefore, the hybrid engine has a condition where the clutch is frequently disengaged and engaged for a long time, the thrust plate is prone to deviation and overheating, lack of lubrication, and the risk of thrust plate burn failure increases.

[0005] In order to ensure the long-term separation of the clutch and the safe and reliable operation of the thrust plate, it is necessary to ensure that the thrust friction surface has sufficient oil lubrication. The existing technologies include forced lubrication and active oil lubrication in the oil channel, such as a crankshaft thrust plate forced lubrication structure disclosed in Chinese patent CN211175051U, which includes a body bearing seat and a bearing cover, a bolt hole seat is provided on the bearing cover, and the bearing cover is installed at the bottom of the body bearing seat by bolts. The inner circumference of the body bearing seat and the bearing cover are respectively installed with an upper bearing shell and a lower bearing shell, thrust plates are installed on both sides of the bearing cover, and a vertical groove for the circulation of lubricating oil is provided on the inner end face of the thrust plate in contact with the side of the bearing cover. The active lubrication effect is strong, but the active lubrication method also has defects. Its structure is complex and it needs to consume the oil in the main oil channel.

[0006] In addition, there is also the wedge groove splash lubrication method. Although the wedge groove structure is simple, after the hybrid engine has been working for a long time, the thrust plate may still lack oil when working in a compressed state for a long time, and there is a risk of burn failure. Utility Model Content

[0007] The utility model provides a thrust plate structure which utilizes the capillary phenomenon principle to store oil. Utilizing the capillary phenomenon principle, multiple groups of round hole groove oil storage structures are designed on the thrust plate to ensure the normal operation of the engine under the clutch separation condition with a longer continuous separation time.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a thrust plate structure that uses the capillary phenomenon principle to store oil. The thrust plate structure is arranged in the gap between the bearing seat end face of the cylinder block and the crankshaft end face, and includes a thrust plate body, a crankshaft side groove and a cylinder body side groove symmetrically arranged on the two end faces of the thrust plate body, and the length direction of the crankshaft side groove and the cylinder body side groove are both arranged along the radial direction of the thrust plate body, and a through hole is arranged through the thrust plate body, and one end of the through hole is connected to the crankshaft side groove and the other end is connected to the cylinder body side groove. In the utility model, grooves are arranged on both sides of the thrust plate, that is, both end faces, and then through holes are designed to connect the grooves on the two end faces to form a connected oil channel, which can transport lubricating oil to the moving surface, and use the capillary phenomenon principle to absorb and store oil, provide more oil storage space, and ensure the normal operation of the engine clutch separation condition with a longer continuous separation time.

[0009] Preferably, the thrust plate body is constructed as a semi-annular sheet structure, and the crankshaft side grooves and the cylinder body side grooves are both provided with more than two groups and are circumferentially distributed on the thrust plate body. The multiple groups of grooves design provides more oil storage space and increases the heat dissipation area, which is beneficial to heat dissipation.

[0010] Preferably, the through holes are provided in two or more numbers and are radially distributed along the crankshaft side groove. By adopting a multiple through hole design and dispersively arranging small diameter circular holes, the oil liquid with oil tension can only utilize the capillary phenomenon principle in the small circular holes to absorb and store the oil, thus ensuring the normal operation of the engine clutch separation condition with a longer continuous separation time.

[0011] Preferably, the groove width of the crankshaft side groove and the cylinder body side groove is the same, and the diameter of the through hole is 0.9 to 1.1 times the groove width of the crankshaft side groove. The oil liquid with oil tension in the through hole of the small circular hole structure can better utilize the capillary phenomenon principle to absorb and store the oil.

[0012] Preferably, the through hole and the groove on the crankshaft side are vertically arranged, and the through hole and the groove on the cylinder body side are vertically arranged. The structure is simple, easy to process, and low in cost.

[0013] Preferably, the crankshaft side groove is connected to the crankcase cavity. The utility model adopts splash lubrication, the crankshaft side groove of the thrust plate can be connected to the crankcase cavity, and the splash lubricant can rush into the groove to replenish the circular hole. The engine oil stored in the circular hole and the splash replenished engine oil can provide lubrication for the thrust plate and the corresponding moving surface of the crankshaft for a longer time, ensuring reliable operation.

[0014] The beneficial effects of the utility model are:

[0015] The utility model designs a plurality of groups of circular holes and groove oil storage structures on the thrust plate body, and small diameter circular holes are dispersedly arranged. The oil liquid with oil tension can only utilize the capillary phenomenon principle to absorb and store the oil in the small circular holes.

[0016] The grooves on both sides of the thrust plate body of the utility model are connected to the circular holes to form connected oil channels, which can transport lubricating oil to the moving surface.

[0017] The through holes and grooves of the utility model are distributed in multiple groups, providing more oil storage space, ensuring the normal operation of the engine clutch separation condition with a longer continuous separation time;

[0018] The through holes and grooves are designed in multiple groups, and the walls of the through holes and grooves actually increase the heat dissipation area of ​​the thrust plate, improve the heat dissipation, and reduce the temperature rise rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The invention is a structural schematic diagram of a crankshaft thrust structure with forced lubrication in the prior art.

[0020] Figure 2 It is a schematic diagram of the wedge groove splash lubrication structure in the prior art.

[0021] Figure 3 The utility model is a structural schematic diagram of a thrust plate structure for storing oil by utilizing the capillary phenomenon principle.

[0022] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0023] Figure 5 yes Figure 4 Section view along AA direction.

[0024] Figure 6 The utility model discloses a schematic diagram of the installation structure of a thrust plate structure for storing oil by utilizing the capillary phenomenon principle.

[0025] In the figure: 1-cylinder body, 2-crankshaft, 3-thrust plate body, 301-crankshaft side groove, 302-cylinder body side groove, 303-through hole. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or structure referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] Embodiment 1:

[0029] like Figures 3 to 6 As shown, a thrust plate structure for storing oil using the capillary phenomenon principle is arranged in the gap between the end face of the bearing seat of the cylinder block 1 and the end face of the crankshaft 2, and is characterized in that it includes a thrust plate body 3, a crankshaft side groove 301 and a cylinder block side groove 302 symmetrically arranged on the two end faces of the thrust plate body 3, the length directions of the crankshaft side groove 301 and the cylinder block side groove 302 are both arranged radially along the thrust plate body 3, a through hole 303 is set through the thrust plate body, one end of the through hole 303 is connected to the crankshaft side groove 301 and the other end is connected to the cylinder block side groove 302.

[0030] The present embodiment designs a groove oil storage structure and a small-diameter through hole 303 connecting the groove. The oil liquid with oil tension utilizes the principle of capillary phenomenon to absorb and store the oil in the small-diameter through hole 303. The small-diameter through hole 303 forms a connected oil channel, which can transport lubricating oil to the moving surface, ensuring the normal operation of the hybrid engine clutch separation condition with a longer continuous separation time.

[0031] Embodiment 2:

[0032] In the prior art, forced lubrication is often used, and the oil channel actively lubricates the oil, such as Figure 1 As shown, the arrows indicate the flow path of the forced lubrication oil. Although its lubrication effect is strong, its disadvantage is that it has a complex structure and consumes the oil in the main oil channel.

[0033] Prior art center, the crankshaft thrust piece with wedge groove structure is as follows Figure 2 As shown, the wedge-shaped groove has a simple structure, but it may lack oil if it works in a compressed state for a long time.

[0034] like Figures 1-2As shown, a thrust plate structure for storing oil by using the capillary phenomenon principle is provided, the thrust plate structure is arranged in the gap between the bearing seat end face of the cylinder block 1 and the crankshaft 2 end face, comprises a thrust plate body 3, a crankshaft side groove 301 and a cylinder side groove 302 symmetrically arranged on the two end faces of the thrust plate body 3, the length direction of the crankshaft side groove 301 and the cylinder side groove 302 are arranged along the radial direction of the thrust plate body 3, and a through hole 303 is arranged through the thrust plate body, one end of the through hole 303 is connected to the crankshaft side groove 301 and the other end is connected to the cylinder side groove 302. In the utility model, grooves are arranged on both sides of the thrust plate, that is, both end faces, and then the through hole 303 is designed to connect the grooves on the two end faces to form a connected oil channel, which can transport lubricating oil to the moving surface, and use the capillary phenomenon principle to absorb and store the oil, provide more oil storage space, and ensure the normal operation of the engine clutch separation condition with a longer continuous separation time.

[0035] like Figure 1 As shown, in this embodiment, the thrust plate body 3 is constructed as a semi-annular sheet structure, and the crankshaft side grooves 301 and the cylinder body side grooves 302 are both arranged in 9 groups and are circumferentially distributed on the thrust plate body 3;

[0036] like Figure 4 As shown, the through holes 303 are arranged in plurality and are radially distributed along the crankshaft side groove 301 . Specifically, three through holes 303 are arranged on a crankshaft side groove 301 , and five through holes 303 are arranged on the next adjacent crankshaft side groove 301 .

[0037] like Figure 5 As shown, in this embodiment, the groove widths of the crankshaft side groove 301 and the cylinder body side groove 302 are the same, and the diameter of the through hole 303 is 0.9 to 1.1 times the groove width of the crankshaft side groove 301. The oil liquid with oil tension is in the through hole 303 with a small circular hole structure, and the capillary phenomenon principle is better utilized to absorb and store the oil.

[0038] like Figure 5 As shown, in this embodiment, the through hole 303 and the crankshaft side groove 301 are vertically arranged, and the through hole 303 and the cylinder body side groove 302 are vertically arranged. The structure is simple, easy to process, and low in cost.

[0039] like Figure 5 and 6As shown, in this embodiment, the crankshaft side groove 301 is connected to the crankcase cavity, and a gap is left between the crankshaft side groove 301 and the end surface of the crankshaft 2, and the gap is connected to the crankcase cavity. The thrust plate crankshaft side groove 301 can be connected to the crankcase cavity, and the splashing lubricant can rush into the groove to replenish the circular hole, and the splashing lubrication method is adopted, which has a simple structure. The engine oil stored in the circular hole and the splashing replenished engine oil can provide lubrication for the thrust plate and the corresponding moving surface of the crankshaft 2 for a longer time, ensuring reliable operation.

[0040] like Figure 6 As shown, in this embodiment, the installation position of the thrust plate body 3 is located between the crankshaft 2 and the bearing seat of the cylinder block 1. When the engine clutch is disengaged, the crankshaft 2 pushes the thrust plate body 3 and presses it on the bearing seat of the cylinder block 1. The crankshaft 2 rotates relative to the thrust plate body 3, and the thrust plate body 3 is stationary relative to the bearing seat of the cylinder block 1.

[0041] The lubricating oil fills the grooves and the through-holes 303. During the rotation of the crankshaft 2, an oil film is formed between the thrust plate body 3 and the crankshaft 2 to keep the moving pair lubricated. At the same time, the lubricating oil is squeezed out, and the oil between the relatively moving surfaces is continuously replenished through the crankshaft side groove 301 and the cylinder body side groove 302. By utilizing the principle of capillary phenomenon, the through-holes 303 can store and absorb the oil, and the oil will not be lost due to gravity and vibration. When the lubricating oil in the crankshaft side groove 301 and the cylinder body side groove 302 is continuously consumed, the oil in the through-holes 303 will be automatically filled.

[0042] The crankshaft side groove 301 can be connected to the crankcase cavity, and the splashing lubricant can rush into the crankshaft side groove 301 and the cylinder body side groove 302 to replenish the circular hole. The engine oil stored in the through hole 303 and the splashing replenished lubricant can provide lubrication for the thrust plate body 3 and the corresponding moving surface of the crankshaft 2 for a longer time, ensuring reliable operation.

[0043] The grooves and through holes 303 are designed in groups, and multiple groups are distributed on the circumference of the thrust plate body 3, which provides more oil storage space and increases the heat dissipation area, which is beneficial to heat dissipation.

Claims

1. A thrust plate structure for storing oil by utilizing the capillary phenomenon principle, arranged in the gap between the end face of the bearing seat of the cylinder block (1) and the end face of the crankshaft (2), characterized in that The invention comprises a thrust plate body (3), a crankshaft side groove (301) and a cylinder block side groove (302) symmetrically arranged on two end surfaces of the thrust plate body (3), the length directions of the crankshaft side groove (301) and the cylinder block side groove (302) being arranged along the radial direction of the thrust plate body (3), a through hole (303) penetrating the thrust plate body, one end of the through hole (303) being connected to the crankshaft side groove (301) and the other end being connected to the cylinder block side groove (302).

2. The thrust plate structure for storing oil by utilizing the capillary phenomenon principle according to claim 1, characterized in that: The thrust plate body (3) is constructed as a semi-annular plate structure, and the crankshaft side grooves (301) and the cylinder body side grooves (302) are both arranged in more than two groups and are distributed annularly on the thrust plate body (3).

3. The thrust plate structure for storing oil by utilizing the capillary phenomenon principle according to claim 1, characterized in that: The through holes (303) are provided in a number of more than two and are radially distributed along the crankshaft side groove (301).

4. The thrust plate structure for storing oil by utilizing the capillary phenomenon principle according to claim 1, characterized in that: The groove widths of the crankshaft side groove (301) and the cylinder block side groove (302) are the same, and the diameter of the through hole (303) is 0.9 to 1.1 times the groove width of the crankshaft side groove (301).

5. The thrust plate structure for storing oil by utilizing the capillary phenomenon principle according to claim 1, characterized in that: The through hole (303) and the crankshaft side groove (301) are arranged vertically, and the through hole (303) and the cylinder body side groove (302) are arranged vertically.

6. The thrust plate structure for storing oil by utilizing the capillary phenomenon principle according to claim 1, characterized in that: The crankshaft side groove (301) is communicated with the crankcase cavity.

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